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common-session-retrospective

Review session corrections, trigger misses and recurring agent mistakes to propose targeted skill-library changes. Use for retrospective, rework or routing-gap analysis before registry edits; load +common/common-learning-log for redacted evidence.

Quality

81%

Does it follow best practices?

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

75%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A dense, well-structured protocol skill with concrete commands, a decision table for prevention mechanisms, explicit authorization and evaluation gates, and properly split reference files. The main weaknesses are run-on protocol steps that obscure the sequence, some abstract steps whose mechanics live only in references, and minor token redundancy (duplicated reference links, a boilerplate-looking anchors section).

Suggestions

Break the multi-clause run-on steps (especially steps 4, 7 and 8 of the Protocol) into short sub-bullets so each rule is scannable and the sequence reads clearly.

Add one minimal inline example of a trigger-miss record or improvement item so steps 3 and 4 produce immediately correct output without first loading references/methodology.md.

Remove the duplicated trailing References section (links already appear inline) and either justify or trim the "Canonical response anchors" section, which reads as leftover boilerplate.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence with no explanation of known concepts, but a few tokens could be trimmed: the trailing "Canonical response anchors" section adds little operational value, and the "References" section repeats links already given inline in Local preparation and Trigger Miss Output. It is far above the verbosity of the 3 anchor but not the 'every token earns its place' fit of the 5 anchor.

4 / 5

Actionability

Concrete, executable guidance is present throughout: specific commands ("ags retrospective enable", "prepare_retrospective", "get_session_cost"), a failure-shape-to-mechanism-to-verification table, and enumerated improvement-item fields (root cause, owner, mechanism, verification/eval reference, adoption status). Minor gaps remain — steps 6 and 8 ("Evaluate", "Log and report") stay abstract without loading the reference files, matching the 4 anchor's 'minor gaps' rather than the 5 anchor's fully self-contained coverage.

4 / 5

Workflow Clarity

The 8-step Protocol is clearly sequenced with explicit validation gates (step 6 Evaluate on held-out cases, step 7 independent maintainer review, "Stop on missing proof", canary/rollback), satisfying the 5 anchor's validation requirement. However, steps 4, 7 and 8 are dense run-on sentences packing several rules each, and checkpoints like "verified fresh eval evidence" and "verified readiness" are left implicit, fitting the 4 anchor's minor validation gaps.

4 / 5

Progressive Disclosure

Good structure: a bundle tree diagram, well-signaled one-level-deep references with section anchors ([references/methodology.md](references/methodology.md#trigger-miss-record), "Details: [references/local-preparation.md]"), and both referenced files exist with real content. Minor organization gaps keep it below 5: reference links are stated twice (inline plus a separate References section), and both reference files link out to ../../common-learning-log/... paths outside this bundle.

4 / 5

Total

16

/

20

Passed

Description

83%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description that clearly and explicitly answers both what the skill does and when to use it, in third person, with concrete trigger phrases and no fluff. Keyword coverage and action coverage are good rather than comprehensive, leaving minor room for synonyms and full capability coverage.

DimensionReasoningScore

Specificity

"Review session corrections, trigger misses and recurring agent mistakes to propose targeted skill-library changes" lists several specific actions, but coverage has gaps — the analysis, local-preparation and logging/reporting halves of the skill are not mentioned. It exceeds the 3 anchor (only 1-2 concrete actions) but is not comprehensive enough for 5.

4 / 5

Completeness

The first sentence explicitly states what the skill does and "Use for retrospective, rework or routing-gap analysis before registry edits" explicitly states when to use it with concrete trigger phrases. The 4 anchor requires the 'when' to be only partially explicit, which does not fit here.

5 / 5

Trigger Term Quality

"Use for retrospective, rework or routing-gap analysis" plus "session corrections" gives good natural keyword coverage a user would plausibly say. It falls short of the 5 anchor because common variations like "session review", "postmortem" or "lessons learned" are missing, but is well above the 3 anchor's partial coverage.

4 / 5

Distinctiveness Conflict Risk

The skill occupies a clear niche (session retrospective for skill-library maintenance), but "rework" and "corrections" are common words in ordinary coding sessions with minor overlap risk against review/refactor/learning skills. It does not reach the 5 anchor's minimal conflict risk but is clearly more distinct than the 3 anchor.

4 / 5

Total

17

/

20

Passed

Validation

81%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 13 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

13

/

16

Passed

Repository

HoangNguyen0403/agent-skills-standard

Path

.github/skills/common/common-session-retrospective/SKILL.md

Reviewed

Table of Contents

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